Killashee may refer to:
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Killashee, County Longford
Killashee () is a village in County Longford, Ireland. It is situated on the N63 midway between Lanesborough and Longford, near the Royal Canal and east of the River Shannon.
Sport
Killashee is home to St. Brigid's Killashee GAA, the te ...
, Irish village
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Killashee Round Tower, monastic site in County Kildare, Ireland
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